ASTROSAT CZTI

Data Quality Report

Orbit 17719

Creation date: 2024-06-27T17:40:00.375909
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T03_042T01_9000002630_17719cztM0_level2.evt modeM0/AS1T03_042T01_9000002630_17719cztM0_level2_quad_clean.evt
Size (bytes)478,293,12086,348,160
Size456.1 MB 82.3 MB
Events in quadrant A2,959,779551,514
Events in quadrant B3,068,861563,595
Events in quadrant C3,266,700536,022
Events in quadrant D4,751,325513,560

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131931
B0133511
C0137921
D0187961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6456490.758984%
B6457620.960198%
C6457861.331888%
D64575328.239120%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7306 6457 0 0 0.00% 0.00%
B 7307 6458 1 1 0.01% 0.02%
C 7307 6458 0 0 0.00% 0.00%
D 7307 6457 415 415 5.68% 6.43%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 226 6523 36.93 768 751 156.3
A 12 194 5801 32.31 768 751 156.3
A 3 137 5782 32.19 768 751 156.3
B 0 219 38092 253.31 766 747 147.4
B 12 111 17496 113.61 766 747 147.4
B 11 111 15233 98.26 766 747 147.4
C 3 233 301733 1772.92 727 733 169.8
C 14 238 112368 657.54 727 733 169.8
C 5 218 15573 87.41 727 733 169.8
D 7 238 1784111 9503.97 708 694 187.6
D 13 232 191794 1018.39 708 694 187.6
D 2 234 26245 136.16 708 694 187.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter